Qpi Configuration - Supermicro X9DRW-CF31 User Manual

X9DRW-CF31/X9DRW-CTF31 Motherboard User's Manual
Intel® I/OAT
The Intel I/OAT (I/O Acceleration Technology) significantly reduces CPU over-
head by leveraging CPU architectural improvements, freeing up the system
resource for other tasks. The options are Disabled and Enabled.
DCA Support
Select Enabled to use Intel's DCA (Direct Cache Access) Technology to improve
data transfer efficiency. The options are Disabled and Enabled.
MMCFG (Memory Mapped Configuration) BASE
This item allows the user to set the default PCI MMIO base address. The lower
the MMIO base address is, the less available the system memory is in a 32-bit
OS. The default setting is [0x80000000].
IIO 1 PCIe Port Bifurcation Control
IIO 1 IOU2 - PCIe Port/IIO 1 IOU3 - PCIe Port
This submenu configures the following IO PCIe Port Bifurcation Control settings
for IIO 1 IOU2 - PCIe ports or IIO 1 IOU3 - PCIe ports to determine how the avail-
able PCI-Express lanes will be distributed between the PCI-Express Root Ports.
IIO 2 PCIe Port Bifurcation Control
IIO 2 IOU2 - PCIe Port/IIO 2 IOU3 - PCIe Port
This submenu configures the following IO PCIe Port Bifurcation Control settings
for IIO 2 IOU2 - PCIe ports or IIO 2 IOU3 - PCIe ports to determine how the avail-
able PCI-Express lanes will be distributed between the PCI-Express Root Ports.
IIO 2 IOU2 - PCIe Port
This item configures IIO 2 IOU2 - PCIe Port settings. The options are: x4x4x4x4,
x4x4x8, x8x4x4, x8x8, x16 and Auto.
IIO 2 IOU3 - PCIe Port
This item configures IIO 2 IOU3 - PCIe Port settings. The options are: x4x4x4x4,
x4x4x8, x8x4x4, x8x8, x16 and Auto.
QPI Configuration
Current QPI Link
This item displays the current status of the QPI Link.
Current QPI Frequency
This item displays the frequency of the QPI Link.
4-10